首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
There was one thought that air pollution affected only the area immediately around large cities with factories and heavy automob
There was one thought that air pollution affected only the area immediately around large cities with factories and heavy automob
admin
2015-08-14
93
问题
There was one thought that air pollution affected only the area immediately around large cities with factories and heavy automobile traffic. At present, we realize that although these are the areas with the worst air pollution, the problem is literally worldwide. On several occasions over the past decade, a heavy cloud of air pollution has covered the east of the United States and brought health warnings in rural areas away from any major concentration of manufacturing and automobile traffic. In fact, the very climate of the entire earth may be infected by air pollution. Some scientists consider that the increasing concentration of carbon dioxide in the air resulting from the burning of fossil fuels(coal and oil)is creating a "greenhouse effect"—conserving heat reflected from the earth and raising the world’ s average temperature. If this view is correct and the world’s temperature is raised only a few degrees, much of the polar ice cap will melt and cities such as New York, Boston, Miami, and New Orleans will be in water.
Another view, less widely held, is that increasing particular matter in the atmosphere is blocking sunlight and lowering the earth’ s temperature—a result that would be equally disastrous. A drop of just a few degrees could create something close to a new ice age, and would make agriculture difficult or impossible in many of our top farming areas. Today we do not know for sure that either of these conditions will happen(though one recent government report drafted by experts in the field concluded that the greenhouse effect is very possible). Perhaps, if we are lucky enough, the two tendencies will
offset
each other and the world’ s temperature will stay about the same as it is now.
Driven by economic profit, people neglect the damage on our environment caused by the " advanced civilization". Maybe the air pollution is the price the human beings have to pay for their development. But is it really worthwhile?
This passage is primarily about______.
选项
A、the greenhouse effect
B、the burning of fossil fuels
C、the potential effect of air pollution
D、the likelihood of a new ice age
答案
C
解析
文章是在讨论人气污染给人类带来的潜在影响。
转载请注明原文地址:https://kaotiyun.com/show/sdjd777K
本试题收录于:
公共英语三级笔试题库公共英语(PETS)分类
0
公共英语三级笔试
公共英语(PETS)
相关试题推荐
It’snosecretthatmanychildrenwouldbehealthierandhappierwithadoptiveparentsthanwiththeparentsthatnaturedealtt
Christmaswasa【C1】______affair,whenIgrewup.TherewerejustmyparentsandI.Ivowed【C2】______somedayI’dmarryandhave
Christmaswasa【C1】______affair,whenIgrewup.TherewerejustmyparentsandI.Ivowed【C2】______somedayI’dmarryandhave
Today’spolicemeninlargecitiesthroughouttheworld【C1】______onmodeminventionstohelpthemintheirwork.Inmostplacesm
Today’spolicemeninlargecitiesthroughouttheworld【C1】______onmodeminventionstohelpthemintheirwork.Inmostplacesm
Today’spolicemeninlargecitiesthroughouttheworld【C1】______onmodeminventionstohelpthemintheirwork.Inmostplacesm
Today’spolicemeninlargecitiesthroughouttheworld【C1】______onmodeminventionstohelpthemintheirwork.Inmostplacesm
Today’spolicemeninlargecitiesthroughouttheworld【C1】______onmodeminventionstohelpthemintheirwork.Inmostplacesm
随机试题
关于非全日制用工的说法,下列哪一选项不符合《劳动法》的规定?()
脱疽内治,应始终贯穿的原则:脱疽寒湿证的治则,除活血化瘀外,还需采用:
张女士为A市甲超市财务管理人员,她从2016年1月份开始建立家庭消费电子账,6月份从甲超市购买了下列商品:(1)粉底液一盒,支出400元。(2)白酒1000克,支出640元。(3)食品支出1010元,其中:橄榄油2500克,支出400元;淀粉1000
表达“亿万人民团结起来,大家相亲相爱”欢乐理想的乐曲是贝多芬的()。
我国正式颁布且实施的第一个学制是()。
给定资料1.PX的中文名称叫对二甲苯,一种芳烃类化合物,是石油化工产业链中的中间产品,是纺织服装、塑料制品等日用消费品生产的原料之一。客观上讲,PX有一定毒性,但毒性要比苯小很多,与食盐和酒精相当。M市PX项目由市政府与市石化公司采取合
Asayoungbondtrader,Buttonwoodwasgiventwopiecesofadvice,tradingrulesofthumb,ifyouwill:thatbadeconomicnewsi
PlantGasScientistshavebeenstudyingnaturalsourcesofmethanefordecadesbuthadn’tregardedplantsasaproducer,notesF
【B1】【B6】
I’musuallyfairlyskepticalaboutanyresearchthatconcludesthatpeopleareeitherhappierorunhappierormoreorlesscerta
最新回复
(
0
)